The answer is:
0.3,
30%,
3/10
6/20
Why? Well, see below!
The total number of cubes present in the bag is 20. 6 of these cubes present are green. Since 20 is the total number, that would mean that 100% = 20. Because 100 divided by 20 = 5, we can multiply 6 by 5 to get the amount of cubes that would be green out of 100.
6 x 5 = 30
Therefore, 30/100 cubes are green. This also is representative of the probability of taking a cube out that is green because it’s a ratio of 30 green cubes : 100 total cubes.
Because 30/100 is not a whole number, anything equivalent to 30/100 will be our answer. In decimated form, this converts to 0.3. In fraction form, these numbers both can be divided by 5 since they are even.
100 / 5 = 20
30 / 5 = 6
However, we are not done. 6/20 can also be reduced by 2.
20 / 2 = 10
6 / 2 = 3
Your final fraction conversion would be 3/10, which is an answer choice. Since 3/10 = 30/100, we know that as a percentage, that is the equivalent to 30%.
6/20 is also our answer because it is the same fraction as 3/10, it just is not reduced.
Your final answers: 30%, 3/10, 6/20, 0.3. If you need help, let me know and I will gladly assist you.